#### skythunder

##### Junior Member level 3

**vdb hspice differential fully acout=0**

Hi, all,

I want to know how to measure the characteristics of a fully differential OPAMP with switched capacitor common mode feedback network. Obviously, we can't use continous time measurement methods(AC sweep) to find DC gain , Unity gain bandwidth, CMRR, PSRR,etc.

Are there any specifial methods to measure those parameters of an OPAMP, or just using transient simulation to approximate them ?

Thanks